Converting/shp to osm using grass and gpsbabel

Imports and automated edits should only be carried out by those with experience and understanding of the way the OpenStreetMap community creates maps, and only with careful planning and consultation with the local community. See our guidelines for imports and our code of conduct of automated edits for more information. Imports/automated edits which do not follow these guidelines might be reverted!

In this example, the used files are stored in "C:\OSM\SHP\": kommunal.shp, kommunal.dbf, kommunal.sbn, kommunal.sbx, kommunal.prj.
"kommunal.shp" contains a street-network with very high accuracy - JOSM couldn't handle this...